00508naa#a2200169#i#450# EN\INFRA-M\bibl\5553 20250109125259.4 2587-9111 20150417b2015####ek#y0engy0150####ca RUS RU Study of Statistical Methods for Analyzing Dynamics of Nonlinear Economic Systems Journal article Moscow INFRA-M Academic Publishing LLC. 2015 5 с. Journal article local Grishina Svetlana naukaru.ru